Home / 9,561.44-13,199.59-5,978.39

Finding the Fourth Proportional to 9,561.44, 13,199.59 and 5,978.39

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Solution

The fourth proportional to 9,561.44, 13,199.59 and 5,978.39 is: 8,253.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,561.44 : 13,199.59 = 5,978.39 : x
  2. Step 2: Convert to fraction form
    9,561.44/13,199.59 = 5,978.39/x
  3. Step 3: Cross multiply
    9,561.44x = 13,199.59 × 5,978.39
  4. Step 4: Simplify right side
    9,561.44x = 78,912,296.86
  5. Step 5: Solve for x
    x = 78,912,296.86/9,561.44
  6. Step 6: Final answer
    x = 8,253.18

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.